The median home in Upper Macungie was built in 2000; there are 10,600 of them. What the code requires when that roof is replaced, and who signs off, is below.
New Roofing Costs connects homeowners with independent local roofing contractors. We do not perform roofing work.
This number connects homeowners who are planning a new roof or a full roof replacement with independent local roofing contractors. It is not for leak repairs or patch jobs. The call must come from the homeowner who decides on the roof. Calls may be recorded.
Permit
The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Upper Macungie is the one to ask before work starts.
Source: 34 Pa. Code § 403.1(b)
Layers
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 22% of Upper Macungie’s homes were built before 1980, ask what is under the newest layer.
Ice barrier
Whether an eave membrane is a code item depends on the climate table the municipality filled in when it adopted the code (IRC R905.1.2, Table R301.2). The contractor or the township code office in Upper Macungie will know.
Rules as read on October 24, 2026. The state’s code edition and the rest of its rules: roof replacement in Pennsylvania.
Owners live in 7,813 of Upper Macungie’s occupied homes, or 79%. By year built, 6% before 1940, 9% before 1960, 22% before 1980; 50% went up in 2000 or later. (ACS 2020–2024.)
By building type: 54% detached houses, 28% attached single-family houses (rowhouses, twins and townhouses), 4% manufactured homes.
50% of homes here were built in 2000 or later. HUD’s useful-life table gives an asphalt-shingle roof 20 years, so roofs on houses from the early 2000s are reaching that age.
Of the 25 Lehigh County municipalities on this site, Upper Macungie has the smallest share of homes built before 1980: 22%, against a county range of 22% to 90%.
ZIP codes: 18031 · 18051 · 18087 · 18106 · 18195
| Place | Median built | Before 1980 | Owners | Row, twin | Hail days |
|---|---|---|---|---|---|
| Upper Macungie | 2000 | 22% | 79% | 28% | 20 |
| Lower Macungie | 1993 | 30% | 86% | 24% | 19 |
| Alburtis | 1989 | 49% | 76% | 51% | 15 |
| Weisenberg | 1991 | 31% | 92% | 1% | 13 |
| Macungie | 1982 | 44% | 51% | 42% | 15 |
| South Whitehall | 1974 | 60% | 79% | 14% | 20 |
Median built: median year the homes were built. Before 1980: share of homes built then. Owners: share of homes that are owner-occupied. Row, twin: share of homes that are rowhouses, twins or townhouses. Census ACS 2020–2024. Hail days: days with hail of 1 inch or larger within 10 miles, 2006–2025, NOAA Storm Prediction Center.
Within 10 miles of Upper Macungie, hail of an inch or more was reported on 20 days between 2006 and 2025, the biggest stones 2.5 in on May 14, 2010. The most recent was May 6, 2025.
That is more hail days than 93% of the places in the state on this site.
Severe Winter Storm and Snowstorm (DR-4267, March 2016) is the latest of 2 federal storm declarations covering Lehigh County since 2006. (OpenFEMA.)
A report says hail fell near Upper Macungie, not that it damaged a roof. When wind or hail damage means a new roof.
Lifespans come from HUD’s capital-needs table, not from a brochure. More in the guides to shingles, metal, slate and flat roofs.
| Material | HUD useful life | Fits a house like | Watch for |
|---|---|---|---|
| Asphalt shingles | 20 years | Most pitched roofs; 54% of homes here are detached | Wind class set by the design wind speed (IRC Table R905.2.4.1) |
| Metal (standing seam, panels) | 50 years | Low pitches and long runs | Standing seam that carries its own loads can skip the tear-off (R908.3.1) |
| Slate | 75 years | Older houses; 6% here predate 1940 | Sound slate can be reused (R908.5); broken slate cannot |
| Flat roof: EPDM or TPO | 15 years | Low-slope roofs and rear sections (28% of homes here are attached) | Seams at walls and drainage |
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Upper Macungie and look it up.
The price side is in what a new roof costs in Pennsylvania; the paperwork side in checking a roofing contractor.
Upper Macungie’s ordinance decides. The state code does not cover a reroof that changes no structure (34 Pa. Code § 403.1(b)(8)). So the township code office in Upper Macungie is the one to ask before work starts.
IRC R908.3.1.1 forbids roofing over two existing layers, over slate or tile, or over a water-soaked roof. With 22% of Upper Macungie’s homes were built before 1980, ask what is under the newest layer.
By the Census Bureau’s American Community Survey (2020–2024), the median home in Upper Macungie was built in 2000, 22% of homes were built before 1980, 79% are owner-occupied.
Hail of 1 inch or larger was reported on 20 days within 10 miles of Upper Macungie from 2006 through 2025 (NOAA Storm Prediction Center). A report means hail fell nearby, not that a roof was damaged.
Pennsylvania’s home improvement law (HICPA § 3, § 6) requires registration with the Attorney General from $5,000 a year of such work and puts the number on every estimate; ask for it in Upper Macungie and look it up.
The full list: before you call.
Checked October 24, 2026. Laws and code editions change; the date says when these were last read at the source.